Lining Up Data in ArcGIS: A Guide to Map Projections, a new book by ESRI Press, is an easy-to-navigate, troubleshooting reference for any GIS user with the common problem of data misalignment. Complete with maps and diagrams, this guide presents techniques for identifying data projections and creating custom projections to align your data. To read an excerpt from the book or for more information, visit www.esri.com/esripress.